General Sense of Perceived Self-Efficacy and Loneliness Among Polish Adolescents: Communication with Peers as Mediator. - Szcześniak, Małgorzata; Świątek, Agata Hiacynta; Szczerba, Aniela; Szpunar, Karolina; Falewicz, Adam (Brain Sciences (2076-3425), 2025)